RESUMO
Thresholds of hearing of 76 subjects in the age range 18-24 years were measured using manual audiometers. Particular attention was paid to the otological selection of subjects. In spite of precautions the testers introduce some variation in results, and it is suggested that tester variation might account for differences between various manual audiometry studies and automatic audiometry studies. When tester variation is included there is no significant difference between results of this manual study and that undertaken with automatic audiometers by Robinson, Shipton, and Hinchcliffe, except that our average threshold is higher at 0.5 kHz. We support their main recommendation for adjustment of standards at 0.5 and 6 kHz.
Assuntos
Audiometria de Tons Puros/métodos , Audiometria/métodos , Perda Auditiva Condutiva/diagnóstico , Perda Auditiva Provocada por Ruído/diagnóstico , Perda Auditiva/diagnóstico , Adolescente , Adulto , Limiar Auditivo , Feminino , Humanos , Masculino , Percepção da Altura SonoraRESUMO
An investigation by questionary, otological examination, and audiometry has been carried out on 505 students in higher education. Statistically significant hearing losses were found in the group that admitted frequent attendance at pop-music entertainment compared with a control group. Losses associated with vacation employment in loud noise or with gunfire exposure were also identified. Thses losses were unrecognised before investigation and indicate the need for preventive action.